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Finding the Fourth Proportional to 6,378.66, 8,799.49 and 5,492.93

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Solution

The fourth proportional to 6,378.66, 8,799.49 and 5,492.93 is: 7,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.66 : 8,799.49 = 5,492.93 : x
  2. Step 2: Convert to fraction form
    6,378.66/8,799.49 = 5,492.93/x
  3. Step 3: Cross multiply
    6,378.66x = 8,799.49 × 5,492.93
  4. Step 4: Simplify right side
    6,378.66x = 48,334,911.14
  5. Step 5: Solve for x
    x = 48,334,911.14/6,378.66
  6. Step 6: Final answer
    x = 7,577.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.